Taylor Momsen might want to consider auditioning for a role in New Moon.

The Gossip Girl star-turned-punk rocker has been keeping some late hours these days moonlighting as a rock star in her band, The Pretty Reckless.

"I'm nocturnal," Momsen told MTV News. "I'm a vampire, I decided."

"I write at night," the 15-year-old continued. "I don't write a song; I write in a stream of consciousness. I never edit everything. I have books of lyrics. You can write about a hundred songs from it, but I try to pick one stream."

Taylor Momsen said she had been hard at work on her music long before she formed a band and got a record deal - so much so that she's been writing for awhile now.

"I wrote the whole record first before I looked for a band, really," she said.

The debut Pretty Reckless album, which drops in the fall, will cover a wide range of topics, none of which you should analyze as direct comments about her life.

"A lot of the songs aren't specific," she said.

"I write about how I feel and what I think and what's influencing me at that moment. It's not necessarily about a boyfriend, even though it might sound like it."

"Every lyric has at least four different undertones. There's a light version. Then there's a really, really demented version. There's different ways to see it. That's the way I like it, 'cause I don't want you to know everything about me."

But there is one thing about her she wants to clear up. Thanks to her life as Jenny Humphrey on Gossip Girl, Momsen knows how powerful rumors can be.

And there's one particularly crazy rumor she insists just isn't true.

"I don't really Google myself," she said.

"I try not to. I read somewhere there was this whole blog about how I shoot heroin. I was like, 'Guys, I don't shoot heroin.' Sorry to burst your bubble, but that's obscene. I like Kurt Cobain, but I'm not trying to emulate him."

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.